Fastening device.



G. P. BUMP.

FASTENING DEVICE.

APPLIOATION IILED MAY 14, 1909.

Patentd June 24, 1913.

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UNITED STATES PATENT OFFICE.

GEORGE P. BUMP, or NEWTON, IOWA, ASSIGNOR or ONE-HALF TO J. c. HAWKINS, 0F

- NEWTON, IOWA.

FASTENING DEVICE.

Specification of Letters Patent.

Patented June 24, 1913.

To all whom it may concern:

Be it known that I, GEORGE P. BUMP, citizen of the United States, residing at Newton. Iowa, have invented certain new and useful Improvements in Fastening Devices, of which the following is a specification.

My invention relates to a device for fastening together sheets of paper or the like by forming a tongue from the superposed sheets and passing the same through a slit suitably disposed in the sheets to receive said tongue. v The invention consists in the features and combination and arrangement of parts hereinafter described and particularly pointed out in the claims.

As an exemplification of one physical embodiment of my invention, I show in the accompanying drawings in Figure 1 a side elevation of a tool having my invention embodied therein; Fig. 2 is a similar view of part of Fig. 1 with the jaws or carriers sep arated; Fig. 3 is a plan view of a part of the stripper plate; Fig. 4 is a plan viewof a part of the lower jaw or die member; Fig. 5 is a plan view showing the tie or fastening which is formed in the sheets to hold them together; Fig. 6 is a sectional view of Fig. 5.

The too-l comprises a pair of jaws or carriers 7, 8, having relative movement to open and close, and for the best effect this opening and closing movement-is such as to maintain the parallelism of the opposing faces of the jaws. While the jaws may be mounted and operated in a variety of ways, in the particular construction shown as exemplifying my invention I mount them on handles 9 which arepivoted together at 9, and are also pivoted to the jaws at 15. Pressure upon these handles will close the One jaw, preferably the upper one, is provided with a tongue cutter or punch 11; a needle or piercing device 13, and a tongue tucker or folder 1G. The other jaw or member 8 is the shear or die carrying jaw.

The cutter may be formed in various ways, but preferably with flaring side cutting edges to punch a wedge shaped tongue from the sheets of paper which are to be fastened together. This cutter cooperates with a die opening of the lower jaw represented in Fig. 4, which may be formed directly in said jaw or otherwise provided.

The needle or piercing device 13 may be of various constructions, and it may be mounted in various ways.

In the particular form shown, it consists of a blade located in rear of the punch .or cutter 11 and adapted to make a slit in the sheets of paper to receive the free end of the paper tongue out from the sheets. It is constructed to engage the end of the tongue when moved by the folder and to draw'said end of the tongue up through the slit in the paper sheets when the jaws separate. For this purpose the slitter is preferably provided with an eye 15" into which the end of the tongue projects when bent or folded back by the folder or tucker.

The tongue tucker or folder may be constructed and mounted in various ways. In the particular construction illustrated it is in the form of a spring blade, with its lower or work end resting against afolder operating part. This operating part. may assume various forms. In the particular construction shown it consists of a portion of the stripper plate 10 and preferably of a stud or projection 10 thereon adapted to have a cam action on the folder as the jaws or carriers are moved relatively to each other. \Vhen the parts are in the position shown in Fig. 2 the folder is retracted from the slitter or needle and is at reston the projection 10% but when the jaws are closed as in Fig. 1 the end of the tucker passes down away from the projection 10 and, due to its spring in the particular form illustrated, the lower work end moves toward the needle or slitter 13 and causes the end of the tongue to engage in the eye of said needle.

The stripper plate 10 may be constructed and arranged in various ways. In the particular construction illustrated, it is fixed to the lower jaw and has a natural tendency due to its spring character to assume the position of Fig. 1 to clamp the paper sheets between it and said lower jaw, and it assumes this position when the jaws close. It lies slightly in advance of the edge of the tongue cutter and slitter in the sense that it clamps the paper before the cutter and slitter do their work. It is lifted, as shown in Fig. 2, when the jaws are separated and space isthus provided between the stripper plate and the lower die jaw for the insertion of the superposed sheets of paper which are to be fastened together.

Various means may be provided for lifting the stripper plate as just mentioned, but in the particular construction shown the stripper plate at its front end is continued upwardly and is bent over at 10 to overhang the jaw 7, so that when this jaw is moved to-its retracted or separated position in respect to the lower jaw, it will contact with said bent end and lift the stripper plate as illustrated in Fig. 2. This stripper plate is provided with openings as shown in Fig. 3 for the passage of the cutter 11, the tucker 16, and the slitter or needle 13, and the projection 10 is arranged on the edge of one of these openings. The tie or fastening formed by the tool is illustrated in Figs. 5 and 6. The slit formed by the needle or slitter in the superposed sheets is indicated at 14, and. the tongue, when folded back and passed through the slit, is shown at 12. In the operation of the invention the superposed sheets to be united are inserted between the stripper plate 10 and the die jaw 8. The handles 9 are then pressed together, closing the jaws and causing the cutter 11 and the needle or slitter to pass through the paper. In the particular construction illustrated, the cutter and slitter operate in planes at right angles to the sheets to be fastened. The tongue remains attached at one end to the paper sheets, and the folder or tucker following the action of the cutter, bends the tongue downwardly and rearwardly, and causes its free end to enter the eye of the needle which is now exposed on the under side of the paper sheets. Now, upon the opening or separation of the jaws, the needle will draw the tongue up through the slit as shown in Fig. 6, thus completing the tie. The needle takes hold at a point intermediate of the length of the tongue, and draws the end of the tongue in doubled-up form up through the slit, as set forth in Letters Patent of the United States granted to me November 21,

' 1911, #1,009,644, the end lying in the position shown in said Fig. 6 after the needle leaves it.

It will be observed that the slitting blade or needle is arranged transversely in respect to the cutting knife or punch 11, and at the rear thereof, that is to say, it is so located relative to the knife that it will form a slit in the rear of the base of the tongue out bythe knife or cutter, and this end ofthe tongue up through the slit, and

thus complete the fastening. It will be seen also that the folder operates between the cutting edges of the knife.

The stripper plate serves to clamp the paper while being operated on and to strip it from the cutter and slitter-when these retract.

It is of advantage to operate the stripper plate with or from the upper jaw because as this jaw with the cutter and slitter thereon approaches the die jaw, the stripper will move with equal speed and will clamp the paper sheets securely before the cutter and slitter begin to operate thereon, and as a result a smooth clean tongue and slit will be made, and the device will work equally -well with the finest quality of paper as with the coarser kinds, the paper in either case being held from buckling up.

While the relative,positions of the slitter or needle and the tongue cutter and folder may be different from that disclosed, I prefer to placethem so that the slitter will be nearest the edge of the paper sheets, or in other words in rear of the tongue cutter and folder. In Fig. 6, therefore, the right hand edge is the top edge for instance of a series of letter sheets, and the portion at the left of the tie will represent the body of the letter sheets. Now, if the body portion of the upper sheet is lifted, the tendency to separate is resisted more effectually than if the right hand portion of the upper sheet were lifted.

I have indicated above that the form of the invention may vary within wide limits, and this applies to the details of construction and arrangement throughout the construction shown.

In the above description I have referred to a tongue and slit. This I have donefor convenience. Of course there is a tongue cut out fromeach sheet and a slit is cut in each sheet, but the sheets being superposed, I have used the singular number in referring to these features, the tongue being made up of a plurality of layers and the slit by a plurality of slits one in each of th separate sheets.

I claim 1. A device for fastening sheets of paper,

slit will extend transversely in respect to comprising cutting means constructed to form a tongue from the paper, which tongue is integrally united to the body of the paper at one end, means for penetrating the paper adjacent to the attached end of the tongue, and means for causing said penetrating means to draw the end of the tongue through the opening made thereby.

2. A paper fastening machine comprising means for cutting paper to form a tongue, means for making a perforation through the paper adjacent to said tongue, said perforating means having an opening or eye, and

means operative while said perforating means is in the paper for placing the end of the tongue in said eye, whereby upon withdrawal, said perforating means is caused to draw the tongue through the perforation.

3. A paper fastening device comprising a cutter constructed to form a tongue in the paper, a piercing device adjacent to said cutter arranged to pass through the paper at the same time with the latter, said piercing device having a tongue engaging portion, and a tongue bender operative while said cutter and piercing device are in the paper for bending back the tongue into engagement with the piercing device whereby as said piercing device withdraws it pulls the end of the tongue through the opening which it had previously made.

4. A paper fastener comprising a pair of connected jaws or arms, a punch carried by one of said jaws, and a cooperating die on the other jaw having cutting edges arranged to form a tongue, a piercing device extending from one of said jaws beside said punch and adapted to penetrate the paper simultaneously therewith, means operative while the punch and piercing device are in the paper for bending back the tongue into such position that it is drawn through the paper upon withdrawal of said piercing device, and a stripper for stripping the paper from the punch and piercer.

5. A device for fastening together a plurality of sheets comprising aws, one of which is movable in relation to the other, a cutter on one jaw, the other jaw having a recess to receive the cutter, a slitter adjacent the cutter and extending transversely in relation to the same, and to the tongue formed by the cutter to form a transverse slit in the paper adjacent the base of the tongue, said slitter and cutter bearing a fixed relation to each other, and said slitter having a portion to engage the tongue and a folder movable toward the slitter to move the end of the tongue into engagement with the slitter after the same passes through the paper, whereby, upon withdrawal of the slitter from the sheets, the end of the tongue will be drawn back through the slit, substantially as described.

6. In combination in a device of the class described, a tongue cutter, a slitter for passing through the aper, means for causing the cutter and slitter to pass through the paper and be withdrawn therefrom, said slit-ter having an eye, and a folder operating against the paper tongue and through the opening in the paper left thereby to tuck the tongue through the eye of the slitter while projecting through the slit, the said slitter, in retracting from the slit, drawing the end of the tongue through the same, substantially as described.

7. In combination in a device of the class described, a tongue cutter, a slitter, with means for causing the slitter and the cutter to pass through the paper and be withdrawn therefrom, and a folder having a movement substantially parallel to the direction of cutting action of the cutter, and a movement substantially transverse in relation thereto to fold back the tongue, the said slitter having a portion to receive the end of the tongue and to draw the same back through the slit in the paper as the slitter is withdrawn, substantially as described.

8. In combination in a device of the class described, a tongue cutter, a slitter for passfor holding the paper, said clamping spring being perforated, a tongue cutter and a slitter on one of the jaws having a fixed relation in respect to each other to pass through the paper simultaneously, and a folder acting in unison with the cutter and slitter to fold the tongue and tuck the end thereof into connection with the slitter while projected through the paper, substantially as described.

10. A device for fastening together a plurality of sheets comprising a tongue cutter, a slitter and a folder, a carrier member for said parts, a cooperating die member, means for giving said members a relative movement, the folder acting to bend the tongue into engagement with the slitter to be drawn thereby through the sheets as the- 11. A device of the class described comprising a die member, a tongue cutter and slitter, a carrier member therefor, means for iving a relative movement to the said memers, a folder on the carrier member to bend the tongue into connection with the slitter to be drawn back through the paper thereby and a folder operating part withwhich the folder has slidlng engagement to effect the movement of the folder toward and from the slitter as the members move toward and from each other.

12. A device of the class described comprising a die member, a tongue cutter and slitter, a carrier member therefor, means for giving a relative-movementto the said members, a folder on the carrier member to bend the tongue into connection with the slitter to be drawn back through the paper thereby and a folder operating part with which the folder has sliding engagement to effect the movement of the folder toward and from the slitter as the members move toward and from each other, and a stripper plate be tween the members carrying said folder operating part, substantially as described.

13. A device of the class described comprising a die member, a tongue cutter and slitter, a carrier member therefor, means for giving a relative movement to the said members, a folder on the carrier member to bend the tongue into connection with the slitter to be drawn back through the paper thereby and a folder operating part WIt-h which the folder has slidm engagement to effect the movement of the folder toward and from the slitter as the members move toward and from each other, and a stripper plate between the members having an opening for the passage of the tongue cutter and carrying said folder operating part, said folder operating part consisting of a stud at the edge of the opening in the stripper plate, substantially as described.

14. In combination in an apparatus of the class described, two members having relative movement with means for operating them, a slitter mounted on one member to pass through the paper sheets and tongue cutting and folding means to cut a tongue from the superposed sheets and bend it into connection with the slitter while the latter is projected through the paper sheets to be drawn thereby through the slit in said sheets when the slitter retracts, said slitter engaging the tongue at a point back from its free end, substantially as described.

15. In combination in a machine of the character described, two members having relative movement, one carryin a tongue cutter, a slitter and a tongue fol er, and the other having a die, means for giving relative movement to said members and a stripper plate having normal flexion toward the die member and means for lifting the stripper plate as the members separate, substantially as described.

16. In combination in a machine of the character described, a die member, a carrier member, a tongue cutter and slitter therein, a stripper plate between the members to clamp the paper sheets to the die member, means for controlling the position of the stripper plate, said means being controlled from the carrying member, substantially as described.

17. In combination in a machine of the character described, two members having relative movement one carryin a tongue cutter, a slitter and a tongue fol er, and the other having a die, means for giving relative movement to said members and a stri er plate having normal flexion toward t e die member and means for lifting the stripper plate as the members separate, said means consisting of an arm extendin up from the stripper plate and operated from the member carrying the tongue cutter, folder and slitter, substantially as described.

18. In combination, a die member, a carrier member, a tongue cutter, folder and slitter carried thereby, a stripper plate separated from the die member and arranged slightly in advance of the cutter, folder and slitter and movin in unison with and at the same rate of speed as the said parts to clamp the paper in advance of their action thereon, substantially as described.

19. In combination, a die member, a carrier member, a tongue cutter and folder mounted on said carrier, a slitter also mounted on the carrier, means for moving the members toward and from each other while maintaining their parallelism to cause the cutter and slitter to operate in planes at right angles to the sheets to be fastened, said folder bending the tongue into engagement with the slitter to be drawn back through the paper sheets thereby, substantially as described.

20. In combination a die member, a carrier member, a tongue cutter, a folder and a slitter mounted on said carrier member, means for giving a relative movement to the members to cause the tongue to be cut, folded and drawn through the slit formed by the slitter, said slitter being located in rear of the tongue cutter and folder to make the slit nearer the edge of the paper sheets and to receive the tongue bent back by the folder toward said edge, the slitter acting to draw the tongue through the said slit -when retracted, substantially as described.

21. In combination, a die member, a carrier member, a tongue cutter, a folder and a slitter, said slitter being arranged adjacent the cutter to form a slit adjacent the base of the tongue and transversely and on each side of the longitudinal center line of said tongue, said folder bending the tongue into engagement with the slitter to be drawn thereby throu h the slit in the paper, substantially as escribed,

22. In combination a die member, a tongue cutter, and means for forming a, single slit transversely of the center line of the tongue and adjacent the base of the said tongue and In testimony whereof, I aflix my signature in presence of two witnesses.

GEORGE P. BUMP.

\Vitnesses:

Vmom E. STAMPER, J. C. HAWKINS. 

